Coffee Joulies work with your coffee to achieve two goals. First, they absorb extra thermal energy in your coffee when it's served too hot, cooling it down to a drinkable temperature three times faster than normal. Next, they release that stored energy back into your coffee keeping it in the right temperature range twice as long.

Who doesn't want these?! Incredible. And that name—Joulies—is just brilliant. Sure, you'll look a little odd dropping these into your coffee, but hey, I'll do it if you will.